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The design reduces friction with a smaller piston skirt area on the minor thrust side.
JE Piston’s Nick Diblasi explained the unsymmetrical nature of their new line of pistons, “In designing a piston with less weight, we’ve created a strong major thrust side of the piston with a smaller minor thrust side. The design reduces friction with a smaller piston skirt area on the minor thrust side. The reduction in friction is a significant amount but the design makes for a stronger overall piston.”
The asymmetrical design is clearly seen in the piston skit where there is a larger skit are at the major thrust side and less skirt in the minor thrust area.
According to Diblasi, “these pistons are perfect for forced induction and stroker applications in sport compacts.”
The material on the piston top is designed with more material located in the center, near the spark plug location, resulting in a stronger piston design where it is needed most.
Features of the JE Piston Asymmetrical design piston package:
- Manufactured with high strength 2618 aluminum alloy asymmetrical forging
- A smooth finish crown requires no deburring of preparation
- Specifically designed for high horsepower, forced induction applications
- Offset wrist pin for reduced weight without sacrificing strength
- JE Pro Seal Rings included
- Includes high quality wrist pins, wire locks and pin fitment
Diblasi also explained, “the piston is designed with weight were it needs to be. The asymmetrical piston design features more material near the center, where the spark plug is located, where more material is desired for a stronger piston.” According to Diblasi, there is a weight savings of 30 grams on the average, and when your talking about reducing rotating weight, that a big deal. “It saves bearings and makes parts last a lot longer which makes everyone happy,” adds Diblasi.
